Perhaps I am wrong, but it seems to me that there is no direct connection between the presentation of a new vaccine for Covid-19 and the rise in the price of bitcoins.
General geopolitical uncertainty in the world is causing the price of bitcoin to rise (in particular, the US elections).
Vaccination of the population is not a panacea. Even if Covid-19 disappears tomorrow, what to do with the falling purchasing power of the population? What is the way out of the situation? National currency issue? However, this will lead to higher inflation. One of the reasons for the rise in bitcoin prices is the rise in inflation.
At the same time, Covid-19 is both a cause and a consequence of the global crisis.
People are less worried about losing income when they know their spending has decreased due to Covid-19.
There is no need to buy Christmas gifts, as the holidays were canceled due to the pandemic.